Python Turtle Tom & Jerry Game Tutorial

This article provides a step‑by‑step guide to creating a simple Tom & Jerry chase game with Python’s turtle module. It explains how to set up the main window, register custom GIF shapes for the cat and mouse, and display introductory text such as “Tom & JERRY” and “READY? 3,2,1, GO”.

The game uses keyboard bindings (Up, Down, Left, Right) to move the mouse character, while the cat character moves automatically toward the mouse. Random initial positions are assigned, and the distance between the two turtles is checked each frame; when the cat gets within ten pixels, the game ends, showing “GAME OVER” and the survival time.

<code>import turtle
import time
import random

def up():
    jerry.setheading(90)
    jerry.forward(20)
def down():
    jerry.setheading(270)
    jerry.forward(20)
def left():
    jerry.setheading(180)
    jerry.forward(20)
def right():
    jerry.setheading(0)
    jerry.forward(20)
playground=turtle.Screen()
playground.register_shape('tom.gif')
playground.register_shape('jerry.gif')
playground.onkey(up,'Up')
playground.onkey(down,'Down')
playground.onkey(left,'Left')
playground.onkey(right,'Right')
#监听
playground.listen()

writer=turtle.Turtle()
writer.color('brown')
writer.hideturtle()
writer.penup()
writer.home()
writer.write("Tom & JERRY",align='center',font=("Comic sans MS",50,"bold"))
writer.goto(0,-50)
writer.write("READY?3,2,1,GO",align='center',font=("Comic sans MS",20,"bold"))
time.sleep(3)

writer.clear()

tom=turtle.Turtle()
tom.shape('tom.gif')
tom.penup()
tom.goto(random.randint(-200,200),random.randint(-200,200))
tom.pendown()
tom.pensize(3)
tom.color('blue')

jerry=turtle.Turtle()
jerry.shape('jerry.gif')
jerry.speed(0)
jerry.penup()
jerry.goto(random.randint(-200,200),random.randint(-200,200))
jerry.color('brown')

start=time.time()
while True:
    tom.setheading(tom.towards(jerry))
    tom.forward(5)
    if tom.distance(jerry)<10:
        end=time.time()
        playground.clear()
        jerry.goto(0,0)
        jerry.write("GAME OVER",align='center',font=("Comic sans MS",50,"bold"))
        jerry.goto(0,-50)
        jerry.write("YOU SURVIVED {:.1f} SECONDS".format(end-start),align='center',font=("Comic sans MS",20,"bold"))
        tom.pu()
        tom.goto(-50,-70)
        tom.stamp()
        jerry.pu()
        jerry.goto(50,-70)
        jerry.stamp()
        break
</code>

The article also includes screenshots of the start screen, gameplay, and the final result, and provides a link to the original CSDN blog post.